Which of the following is the best definition of an antibiotic

A. A chemical that is made in the pharmaceutical laboratory
B. Medications preferred because they are most effective as well as least toxic
C. A chemotherapeutic agent that harms the infectious organism
D. The concentration of the drug that destroys the pathogen
E. A product that is derived from the metabolism of living microorganisms


Answer: E. A product that is derived from the metabolism of living microorganisms

Biology & Microbiology

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